Machine for flaring and bending hoops



(No Model.) s sheets-sheet 1.4 J. PLEUKHARP 8u T. SCHRAMM.

MAGHINE POR PLARING AND BENDING HOOPS. No. 522,487.

Patented July 3, 1894.

WVM/Leone@ 'a sheets-'sheet 2.

J; PLBUKHARP an T. SGHRAMM.

(No ModeL) MACHINE POR FLARING AND BENDING HOOPS.

Patented July 3, 1894.

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J. PLBUKHARP & T. SCHRAMM. MAGHINEFOR PLARING AND BBNDING HOOPS-.-

Patented July 3, 1894.

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JAMES PLEUKHARR AND TI-IEOBALD SOHRAMM,OFOOLUMBUS, OHIO.

MACHINE FOR F-LARING AND BgENDl'NG HVOO PS.

srEcIFIcnToN refining part of Letters Patentino. 522,487, dated July 3,1894.

Applicationneaniy 20,1893.' serial No. ir-tene.` (remodel.)

Beitknown thatwe,JAMEs PLEUKHARP and THEOBALD SCHRAMM, citizens of the United States, residing .at Columbus, in the county of Franklin, State of Ohio, have invented certain new and useful Improvements in Machines for Flaringand Bending Hoops; and

we do hereby `declare the followingto be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to an improved machine for daring and bending the hoop iron, for making hoops for barrels, tubs, &c.

It has for its object to simplify the adjustments of the operating parts of the machine and to secure greater uniformity in the product.

The ordinary method of bending the hoops used in common practice is that of passing the hoop iron flatwise between three rolls, one arranged above and with its axis parallel to and midway between the other two and adjustably related to them. To dare the hoops,-

these rollers are made conical in form. The diiculties arising in the use of a machine of this description are the proper adjustment of the rollers to obtain the degree of flare and bending required and to secure uniformity in the product, the thin flat strips varying greatly in their resistance to bending and the stretching due to flaring.

In the machine which is the subject of this invention the hoop iron is passed between the rollers edgewise, grooves being provided in the lrollers to hold it straightwhile it is being passed between them. Thus there is a stretching of the lower bers of the iron and an upsetting of the upper, the hoop coming out of the rollers in the form of an arc of a circle. The metal` operated upon being the equivalent in thickness of the width of the hoop, great uniformity is the result. Simplicity and delicacy of adjustment to obtain the degree of flare desired are secured by making the bearings of one of the lower rollers move in the arc of a circle Whose center is the axis of the top rollers. For bending or shaping the hoop, a curved guide is so attached to the frame supporting the rollers that the hoop iron as it comes from the rollers is made andthe gear wheel mounted thereon.

I toimpinge against it and is bent-by being turnedront of its course. This guide being made adjustable, the degree, of bending is easily secured. ,The invention consists of the novel features and the peculiar construction and combination `of. the ,parts which willbe hereinafter more fully described and claimed4 and i whichare shown in the annexed drawings, in 6o which- 5 Figure l isa side elevation of a machine embodying the invention. Fig. 2 is a top plan yview of the machine. Fig. 3 is a side elevay tion of a shaft, showing in section the roller Fig. 4i is a detail view of the instrumentalities for adjusting the movable roller. Fig. 5 is a top plan view of the plate provided with the inclined blocksv for adjusting the bearings of 7o the shaftY carrying the movable roller. Fig. 6 is av detail view of the hoop blank as it appearsafterbeing bent to produce the flare, one end Vbeing broken-away. Fig. 7 is a view of the finished hoop prior to riveting the ends 7|; together. A A is the frame of the machine which is preferably made of separate side cast plates and lbolted together. It is provided with'bearings B B E and guide-ways O. In these guide- 8o I ways are fitted the slides D which also serve as the bearings for the roller shaft F, and permit of its being moved foradjustment in the arc of a circle whose center is theaxis of the roller shaftG fitted in the bearings B. nThe 8,5 roller shaft II is fitted in lthe bearings' B. The roller shafts are provided vwith the gear -wheels I I and I2 which mesh together. The roller shaft G is providedv with the pulley K by which power is imparted to the machine. 9o The rollers L, M and N are each made in two pieces as shown most clearly in Fig. 3, held together by means of the screw nut O and a shoulder on the shaft, and forming the grooves y p. Fitted in the bearing Eis the adj ustingy screw R which is made to engage with the slide S by means of the screw nut T.

Bolted to the frame A is the bending device U which consists of a piece formed in the are of a circle and is provided with the slotroo ted base portion V by means of which and a suit-able binding screw it is adjustably con- Lis nected with the frame of the machine. Attached to the frame A is also the roller W which serves to guide the flared and bent hoop out and away from the machine. The inclined faces of the adjustment slides S are adapted to engage with the bearing slides D fitted in the guide ways C.

In operation, the hoop iron Q cut to a proper length, is fed between the rollers edgewise, by means of which it is upset on its inner edge and stretched on its outer, forming the arc of a circle as shown in Fig. 6, thus giving the flare, which may be adj usted to the proper amount by means of the screw R operating the slide S, the vertical portions s of which engaging slides D,by which the bearings of the movable shaft F are made to move in the arc of a circle whose center is the axis of the shaft G. The hoop iron is fed between the rollers through the grooves p p which are made adjustable for different thicknesses or gages by means of the screw nut o, and Iitted to receive and hold the hoop iron edgewise preventing all crumpling or buckling of the iron in the bending edgewise to produce the flare. Coming from between the rollers, this Iiared or edgewise bent hoop iron is made to impinge against the curved guide U by which it is bent tlatwise in tho form of a circle, this iilatwise bending being sufficient to bring `the edges of the iron back into a plane. The

thus flared and bent is guided out and away from the machine by means of the roller W. Where the machine is designed to flare hoop iron of a given and uniform thickness, the grooved rollers may be integrally formed and provided with the groove 1J of proper width, but for general use it is preferable to construct the said rollers of two parts, one part being centrally recessed, the other part having a raised or projecting portion to tit into the said recess and form a bearing for the hoop iron at all relative adjustments of the parts constituting the flaring roller. By loosening the nut O the parts of the flaring roller will separate, as will be readily understood. Having thus described our invention, what we claim, and desire to secure by Letters Patent, is

1. In a hoop Haring machine the combination with an upper and lower fixed roller, and an adjustable lower roller said roller being adjustable in the arc of a circle the center of which coincides with the center of the upper roller, all of said rollers having a narrow groove to receive the hoop or band edgewise, substantially as shown and described.

2. In a hoop fiaring and bending machine, the combination with a series of rollers to ilare the hoop iron edgewise, of a curved guide disposed to bend and curve the hoop laterally, and allroller located in a plane lower than and to one side of the said curved guide, substantially as and for the purpose described.

3. In a hoop flaring and bending machine, the combination with a series of rollers to flare the hoop iron edgewise, of a curved guide disposed to bend and curve the hoop laterally, and means for adjusting the said guide laterally to vary the curve or bend of the hoop iron to suit the size of the required hoop, substantially as set forth.

4. In a hoop haring machine, the combination of a series of three rollers, L, M, and N,

guides tor the bearings of the roller L formed on the arc of circles whose centers coincide with the axis of the roller M, a slide having inclined portions to engage with the said bearings, and a screw for moving the said slide to adjust the bearings to change the relative position of the said roller L, substantially as and for the purpose described.

5. In a machine for ilaring hoops the combination with a frame having slotted sides, bearings arranged Within the slots, rollers journaled between the sides, a roller journaled in the bearings, a slide having an inclined face adapted to bear upon the bearings and adjust the same and means for moving the said slide back or forth,snbstantially as shown and described.

In testimony whereof we ailx our signatures in presence of two Witnesses.

JAMES PLEUKHARP. TI-IEOBALD SCHRAMM.

Witnesses:

EDGAR B. KINKEAD, J No. O. MCDOWELL. 

